2025-12-17 REL PDBe INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update DATA_COLLECTION em_imaging _em_imaging.details DATA_COLLECTION em_image_scans em_imaging_optics em_software pdbx_audit_support _em_imaging_optics.energyfilter_name _em_software.name _pdbx_audit_support.funding_organization REFINEMENT_DESCRIPTION refine DERIVED_CALCULATIONS pdbx_validate_close_contact struct_conn struct_conn_type OTHER atom_sites _atom_sites.fract_transf_matrix[1][1] _atom_sites.fract_transf_matrix[2][2] _atom_sites.fract_transf_matrix[3][3] STRUCTURE_SUMMARY atom_site chem_comp entity pdbx_entity_nonpoly pdbx_nonpoly_scheme struct_conn struct_site _atom_site.B_iso_or_equiv _atom_site.Cartn_x _atom_site.Cartn_y _atom_site.Cartn_z _atom_site.auth_atom_id _atom_site.auth_comp_id _atom_site.label_atom_id _atom_site.label_comp_id _atom_site.type_symbol _chem_comp.id _chem_comp.name _chem_comp.pdbx_synonyms _entity.pdbx_description _pdbx_entity_nonpoly.comp_id _pdbx_entity_nonpoly.name _pdbx_nonpoly_scheme.mon_id _pdbx_nonpoly_scheme.pdb_mon_id _struct_conn.pdbx_dist_value _struct_conn.ptnr1_label_atom_id _struct_conn.ptnr2_auth_seq_id _struct_conn.ptnr2_label_asym_id _struct_site.details _struct_site.pdbx_auth_comp_id STRUCTURE_SUMMARY chem_comp_atom chem_comp_bond database_2 em_admin pdbx_entry_details pdbx_modification_feature _database_2.pdbx_DOI _database_2.pdbx_database_accession _em_admin.last_update DATA_COLLECTION em_admin _em_admin.last_update PDBe PDBe 2016-12-18 2017-01-18 2017-01-18 2025-12-17 Medical Research Council (United Kingdom) MC-U105184330 United Kingdom European Research Council AdG-693087-SPLICE3D EMBO and Marie Sklodowska-Curie Fellowship Ref. S.M.Fica Structure of a spliceosome remodeled for exon ligation Fica SM Oubridge C pre-mRNA splicing, trans-esterification, lariat intermediate, complex C-star, SPLICING Fica SM Oubridge C Galej WP Wilkinson ME Bai XC Newman AJ Nagai K Structure of a spliceosome remodelled for exon ligation. Nature UK 542 377 380 2017 28076345 doi:10.1038/nature21078 1476-4687 0006 NATUAS Hang J Wan R Yan C Shi Y Structural basis of pre-mRNA splicing. Science US 349 1191 1198 2015 26292705 doi:10.1126/science.aac8159 1095-9203 0038 SCIEAS Nguyen TH Galej WP Bai XC Savva CG Newman AJ Scheres SH Nagai K The architecture of the spliceosomal U4/U6.U5 tri-snRNP. Nature UK 523 47 52 2015 26106855 doi:10.1038/nature14548 1476-4687 0006 NATUAS Nguyen TH Galej WP Bai XC Oubridge C Newman AJ Scheres SH Nagai K Cryo-EM structure of the yeast U4/U6.U5 tri-snRNP at 3.7 A resolution. Nature UK 530 298 302 2016 26829225 doi:10.1038/nature16940 1476-4687 0006 NATUAS Galej WP Wilkinson ME Fica SM Oubridge C Newman AJ Nagai K Cryo-EM structure of the spliceosome immediately after branching. Nature UK 537 197 201 2016 27459055 doi:10.1038/nature19316 1476-4687 0006 NATUAS 5mps FULLOVERLAP EMDB EMD-3539 associated EM volume
Structure of a spliceosome remodeled for exon ligation
 Saccharomyces cerevisiae spliceosome. Complex C just after Prp16-mediated remodeling Saccharomyces cerevisiae spliceosome. Complex C just after Prp16-mediated remodeling 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Splicing extract was prepared from Slu7-TAPS yeast strains. An in vitro transcribed yeast UBC4 pre-mRNA substrate (with 2 x MS2 bacteriophage coat protein-binding stem loops at the 5' end and with a 2'-deoxy substitution at the 3'-splice site sequence UAG sequence (UA-2'dG) was pre-bound to an MS2-maltose binding protein fusion protein. This substrate-protein complex was added to the splicing extract. The splicing reaction proceeded through the first step but the second step was blocked by the deoxy substitution. Substrate-bound spliceosomes from the splicing extract were purified on amylose resin and eluted with maltose. Subsequently the spliceosomes were captured on streptactin resin and eluted with desthiobiotin. Purified spliceosomes were concentrated in 20 mM HEPES KOH pH 7.9, 100 mM KCl, 0.25 mM EDTA.
 Yeast UBC4 gene for ubiquitin-conjugating enzyme Saccharomyces cerevisiae 0.03020073
Saccharomyces cerevisiae UBC4 pre-mRNA intron, in vitro transcribed.
1 GUAUGUCUAAAGUUAUGGCCACGUUUCAAAUGCGUGCUUUUUUUUUAAAACUUAUGCUCUUAUUUACUAACAAAAUCAAC AUGCUAUUGAACUAG X17493.1 UBC4 gene exon Saccharomyces cerevisiae 0.006518975999999999
Saccharomyces cerevisiae UBC4 pre-mRNA exon, in vitro transcribed.
1 GAAGUAAGUGAUCUAGAAAG U2 snRNA Saccharomyces cerevisiae 0.376267406
Saccharomyces cerevisiae U2 snRNA
1 ACGAAUCUCUUUGCCUUUUGGCUUAGAUCAAGUGUAGUAUCUGUUCUUUUCAGUGUAACAACUGAAAUGACCUCAAUGAG GCUCAUUACCUUUUAAUUUGUUACAAUACACAUUUUUUGGCACCCAAAAUAAUAAAAUGGACGGGAAGAGACUUUUUAAG CAAGUUGUUUUCCGCUAAUGUCAGGUCUCACUACUUUUUGCUGCUAUUUUUCUUCGCUCAUGGUUUCUUCAUAAGGCGUU UUUAUGAUGGUUUUUCGAAAUUGGUUUUUGAGACGACGGUUGCUCAAGGUUAUUGUUUUUGUUUUCUUCUGGUUGUUUUC UAUUUUCUUUUUUUUAGCUUUCUGUUUCUCCCUUAGUUUGGCUUUUUGCUUCAUACUCUUCCCUGUCUUUCCGAGCCGUU UAUGUCCAACGCGGGAUUUGGUUUUUCUUUAUCGAUGGGAAGAAAUGGUGCUAUAGUAGGUUGGGAGAUAAUAUUUAUGG UAUGGGGUGCUAGUGCGGAUGGGGCGCUCUUAUUGUUGAUUUCUUCGCUCGUCUUCUUUUUCUGGUGGCGCUGCAAGAGG AAGUUUUUCGACUUUGUUAUGAUUUUUGGUUUGCAAGGAAAGGUGUCUUACGAUUCUUUUUUUGAUGUAAUAGGAUAAGC UUGCUUAUCCCCCAAGUAUCGGCCAAAGUUGUUGAUUUUCCUUUUGAAGUGUCCUCGGUUUGAGGGGGUGUAGGGUGGGG UUGGUCUACAAUAAGAGUGUUCCAUUGUUAACGUGCUGGCGUCUUUUACUAUAUUUUUUUUCCCAGUUUAUUUUGUGCUU AUUUUCUCAUUGAGGAGAAGGAGCUCUUCUCGCAGGAUAUAAAUGGAGGUUUGCUAAAGGGGAGGAGAUGUGUUUGUGAG AAUACUGCUGAGAGAGUUCUGGAAGAGAAAAAAAGGAGGCAAUGGAAGGCGUUUGCUGGGAAAAGAGAAGAGCCAUGACU GCAUCUGUUGUUUCAAGGCCAGUUUUAUUAACCGCCUAUGUCAUAGAGGCGUUUUUUUUGGAGGGAUUUGAAGAAUGCCG GCGGCAUCAAGAAACGGACUUGAUGGUUGACGCCUGUUUUUAAAGUUAGAGACGUCGCGACCCUCGCACUUGUGGAGUCG UUCUUGACUUUUACUUUGGUCGCUUGAUGUUUCUCUCGUCUUCCCGUUCGCUCUU Z36099.1 Saccharomyces cerevisiae strain T.52_2H chromosome XII sequence Saccharomyces cerevisiae 0.035883175999999996
Saccharomyces cerevisiae U6 snRNA
1 GUUCGCGAAGUAACCCUUCGUGGACAUUUGGUCAAUUUGAAACAAUACAGAGAUGAUCAGCAGUUCCCCUGCAUAAGGAU GAACCGUUUUACAAAGAGAUUUAUUUCGUUUU CP007856.1 U5 snRNA Saccharomyces cerevisiae 0.057444875
Saccharomyces cerevisiae U5 snRNA
1 AAGCAGCUUUACAGAUCAAUGGCGGAGGGAGGUCAACAUCAAGAACUGUGGGCCUUUUAUUGCCUAUAGAACUUAUAACG AACAUGGUUCUUGCCUUUUACCAGAACCAUCCGGGUGUUGUCUCCAUAGAAACAGGUAAAGCUGUCCGUUACUGUGGGCU UGCCAUAUUUUUUGGAACU CP008157.1 Pre-mRNA-splicing factor 8 Saccharomyces cerevisiae 0.279867469
Saccharomyces cerevisiae Prp8 protein
1 LEVO MSGLPPPPPGFEEDSDLALPPPPPPPPGYEIEELDNPMVPSSVNEDTFLPPPPPPPSNFEINAEEIVDFTLPPPPPPPGL DELETKAEKKVELHGKRKLDIGKDTFVTRKSRKRAKKMTKKAKRSNLYTPKAEMPPEHLRKIINTHSDMASKMYNTDKKA FLGALKYLPHAILKLLENMPHPWEQAKEVKVLYHTSGAITFVNETPRVIEPVYTAQWSATWIAMRREKRDRTHFKRMRFP PFDDDEPPLSYEQHIENIEPLDPINLPLDSQDDEYVKDWLYDSRPLEEDSKKVNGTSYKKWSFDLPEMSNLYRLSTPLRD EVTDKNYYYLFDKKSFFNGKALNNAIPGGPKFEPLYPREEEEDYNEFNSIDRVIFRVPIRSEYKVAFPHLYNSRPRSVRI PWYNNPVSCIIQNDEEYDTPALFFDPSLNPIPHFIDNNSSLNVSNTKENGDFTLPEDFAPLLAEEEELILPNTKDAMSLY HSPFPFNRTKGKMVRAQDVALAKKWFLQHPDEEYPVKVKVSYQKLLKNYVLNELHPTLPTNHNKTKLLKSLKNTKYFQQT TIDWVEAGLQLCRQGHNMLNLLIHRKGLTYLHLDYNFNLKPTKTLTTKERKKSRLGNSFHLMRELLKMMKLIVDTHVQFR LGNVDAFQLADGIHYILNHIGQLTGIYRYKYKVMHQIRACKDLKHIIYYKFNKNLGKGPGCGFWQPAWRVWLNFLRGTIP LLERYIGNLITRQFEGRSNEIVKTTTKQRLDAYYDLELRNSVMDDILEMMPESIRQKKARTILQHLSEAWRCWKANIPWD VPGMPAPIKKIIERYIKSKADAWVSAAHYNRERIKRGAHVEKTMVKKNLGRLTRLWIKNEQERQRQIQKNGPEITPEEAT TIFSVMVEWLESRSFSPIPFPPLTYKNDTKILVLALEDLKDVYASKVRLNASEREELALIEEAYDNPHDTLNRIKKYLLT QRVFKPVDITMMENYQNISPVYSVDPLEKITDAYLDQYLWYEADQRKLFPNWIKPSDSEIPPLLVYKWTQGINNLSEIWD VSRGQSAVLLETTLGEMAEKIDFTLLNRLLRLIVDPNIADYITAKNNVVINFKDMSHVNKYGLIRGLKFASFIFQYYGLV IDLLLLGQERATDLAGPANNPNEFMQFKSKEVEKAHPIRLYTRYLDRIYMLFHFEEDEGEELTDEYLAENPDPNFENSIG YNNRKCWPKDSRMRLIRQDVNLGRAVFWEIQSRVPTSLTSIKWENAFVSVYSKNNPNLLFSMCGFEVRILPRQRMEEVVS NDEGVWDLVDERTKQRTAKAYLKVSEEEIKKFDSRIRGILMASGSTTFTKVAAKWNTSLISLFTYFREAIVATEPLLDIL VKGETRIQNRVKLGLNSKMPTRFPPAVFYTPKELGGLGMISASHILIPASDLSWSKQTDTGITHFRAGMTHEDEKLIPTI FRYITTWENEFLDSQRVWAEYATKRQEAIQQNRRLAFEELEGSWDRGIPRISTLFQRDRHTLAYDRGHRIRREFKQYSLE RNSPFWWTNSHHDGKLWNLNAYRTDVIQALGGIETILEHTLFKGTGFNSWEGLFWEKASGFEDSMQFKKLTHAQRTGLSQ IPNRRFTLWWSPTINRANVYVGFLVQLDLTGIFLHGKIPTLKISLIQIFRAHLWQKIHESIVFDICQILDGELDVLQIES VTKETVHPRKSYKMNSSAADITMESVHEWEVSKPSLLHETNDSFKGLITNKMWFDVQLRYGDYDSHDISRYVRAKFLDYT TDNVSMYPSPTGVMIGIDLAYNMYDAYGNWFNGLKPLIQNSMRTIMKANPALYVLRERIRKGLQIYQSSVQEPFLNSSNY AELFNNDIKLFVDDTNVYRVTVHKTFEGNVATKAINGCIFTLNPKTGHLFLKIIHTSVWAGQKRLSQLAKWKTAEEVSAL VRSLPKEEQPKQIIVTRKAMLDPLEVHMLDFPNIAIRPTELRLPFSAAMSIDKLSDVVMKATEPQMVLFNIYDDWLDRIS SYTAFSRLTLLLRALKTNEESAKMILLSDPTITIKSYHLWPSFTDEQWITIESQMRDLILTEYGRKYNVNISALTQTEIK DIILGQNIKAPSVKRQKMAELEAARSEKQNDEEAAGASTVMKTKTINAQGEEIVVVASADYESQTFSSKNEWRKSAIANT LLYLRLKNIYVSADDFVEEQNVYVLPKNLLKKFIEISDVKIQVAAFIYGMSAKDHPKVKEIKTVVLVPQLGHVGSVQISN IPDIGDLPDTEGLELLGWIHTQTEELKFMAASEVATHSKLFADKKRDCIDISIFSTPGSVSLSAYNLTDEGYQWGEENKD IMNVLSEGFEPTFSTHAQLLLSDRITGNFIIPSGNVWNYTFMGTAFNQEGDYNFKYGIPLEFYNEMHRPVHFLQFSELAG DEELEAEQIDVFS P33334 Pre-mRNA-splicing factor SNU114 Saccharomyces cerevisiae 0.114174008
c Snu114 protein
1 LEVO MEGDDLFDEFGNLIGVDPFDSDEEESVLDEQEQYQTNTFEGSGNNNEIESRQLTSLGSKKELGISLEHPYGKEVEVLMET KNTQSPQTPLVEPVTERTKLQEHTIFTQLKKNIPKTRYNRDYMLSMANIPERIINVGVIGPLHSGKTSLMDLLVIDSHKR IPDMSKNVELGWKPLRYLDNLKQEIDRGLSIKLNGSTLLCTDLESKSRMINFLDAPGHVNFMDETAVALAASDLVLIVID VVEGVTFVVEQLIKQSIKNNVAMCFVINKLDRLILDLKLPPMDAYLKLNHIIANINSFTKGNVFSPIDNNIIFASTKLGF TFTIKEFVSYYYAHSIPSSKIDDFTTRLWGSVYYHKGNFRTKPFENVEKYPTFVEFILIPLYKIFSYALSMEKDKLKNLL RSNFRVNLSQEALQYDPQPFLKHVLQLIFRQQTGLVDAITRCYQPFELFDNKTAHLSIPGKSTPEGTLWAHVLKTVDYGG AEWSLVRIYSGLLKRGDTVRILDTSQSESRQKRQLHDISKTETSNEDEDEDDETPSCEVEEIGLLGGRYVYPVHEAHKGQ IVLIKGISSAYIKSATLYSVKSKEDMKQLKFFKPLDYITEAVFKIVLQPLLPRELPKLLDALNKISKYYPGVIIKVEESG EHVILGNGELYMDCLLYDLRASYAKIEIKISDPLTVFSESCSNESFASIPVSNSISRLGEENLPGLSISVAAEPMDSKMI QDLSRNTLGKGQNCLDIDGIMDNPRKLSKILRTEYGWDSLASRNVWSFYNGNVLINDTLPDEISPELLSKYKEQIIQGFY WAVKEGPLAEEPIYGVQYKLLSISVPSDVNIDVMKSQIIPLMKKACYVGLLTAIPILLEPIYEVDITVHAPLLPIVEELM KKRRGSRIYKTIKVAGTPLLEVRGQVPVIESAGFETDLRLSTNGLGMCQLYFWHKIWRKVPGDVLDKDAFIPKLKPAPIN SLSRDFVMKTRRRKGISTGGFMSNDGPTLEKYISAELYAQLRENGLVP P36048 Pre-mRNA-splicing factor CWC22 Saccharomyces cerevisiae 0.067386062
Saccharomyces cerevisiae Cwc22 protein
1 LEVO MSTATIQDEDIKFQRENWEMIRSHVSPIISNLTMDNLQESHRDLFQVNILIGRNIICKNVVDFTLNKQNGRLIPALSALI ALLNSDIPDIGETLAKELMLMFVQQFNRKDYVSCGNILQCLSILFLYDVIHEIVILQILLLLLEKNSLRLVIAVMKICGW KLALVSKKTHDMIWEKLRYILQTQELSSTLRESLETLFEIRQKDYKSGSQGLFILDPTSYTVHTHSYIVSDEDEANKELG NFEKCENFNELTMAFDTLRQKLLINNTSDTNEGSNSQLQIYDMTSTNDVEFKKKIYLVLKSSLSGDEAAHKLLKLKIANN LKKSVVDIIIKSSLQESTFSKFYSILSERMITFHRSWQTAYNETFEQNYTQDIEDYETDQLRILGKFWGHLISYEFLPMD CLKIIKLTEEESCPQGRIFIKFLFQELVNELGLDELQLRLNSSKLDGMFPLEGDAEHIRYSINFFTAIGLGLLTEDMRSR LTIIQEVEDAEEEEKKLREEEELEKLRKKARESQPTQGPKIHESRLFLQKDTRENSRSRSPFTVETRKRARSRTPPRGSR NHRNRSRTPPARRQRHR P53333 Pre-mRNA-splicing factor PRP46 Saccharomyces cerevisiae 0.050771289
Saccharomyces cerevisiae Prp46 protein
1 LEVO MDGNDHKVENLGDVDKFYSRIRWNNQFSYMATLPPHLQSEMEGQKSLLMRYDTYRKESSSFSGEGKKVTLQHVPTDFSEA SQAVISKKDHDTHASAFVNKIFQPEVAEELIVNRYEKLLSQRPEWHAPWKLSRVINGHLGWVRCVAIDPVDNEWFITGSN DTTMKVWDLATGKLKTTLAGHVMTVRDVAVSDRHPYLFSVSEDKTVKCWDLEKNQIIRDYYGHLSGVRTVSIHPTLDLIA TAGRDSVIKLWDMRTRIPVITLVGHKGPINQVQCTPVDPQVVSSSTDATVRLWDVVAGKTMKVLTHHKRSVRATALHPKE FSVASACTDDIRSWGLAEGSLLTNFESEKTGIINTLSINQDDVLFAGGDNGVLSFYDYKSGHKYQSLATREMVGSLEGER SVLCSTFDKTGLRLITGEADKSIKIWKQDETATKESEPGLAWNPNLSAKRF Q12417 Pre-mRNA-processing protein 45 Saccharomyces cerevisiae 0.042548726999999995
Saccharomyces cerevisiae Prp45 protein
1 LEVO MFSNRLPPPKHSQGRVSTALSSDRVEPAILTDQIAKNVKLDDFIPKRQSNFELSVPLPTKAEIQECTARTKSYIQRLVNA KLANSNNRASSRYVTETHQAPANLLLNNSHHIEVVSKQMDPLLPRFVGKKARKVVAPTENDEVVPVLHMDGSNDRGEADP NEWKIPAAVSNWKNPNGYTVALERRVGKALDNENNTINDGFMKLSEALENADKKARQEIRSKMELKRLAMEQEMLAKESK LKELSQRARYHNGTPQTGAIVKPKKQTSTVARLKELAYSQGRDVSEKIILGAAKRSEQPDLQYDSRFFTRGANASAKRHE DQVYDNPLFVQQDIESIYKTNYEKLDEAVNVKSEGASGSHGPIQFTKAESDDKSDNYGA P28004 Pre-mRNA-splicing factor BUD31 Saccharomyces cerevisiae 0.018484502
Saccharomyces cerevisiae Bud31 protein
1 LEVO MPRIKTRRSKPAPDGFEKIKPTLTDFEIQLRDAQKDKSSKLAAKSNEQLWEIMQLHHQRSRYIYTLYYKRKAISKDLYDW LIKEKYADKLLIAKWRKTGYEKLCCLRCIQKNETNNGSTCICRVPRAQLEEEARKKGTQVSFHQCVHCGCRGCASTD P25337 Pre-mRNA-splicing factor CWC2 Saccharomyces cerevisiae 0.038486561999999995
Saccharomyces cerevisiae Cwc2 protein
1 LEVO MTSWRDKSAKVQVKESELPSSIPAQTGLTFNIWYNKWSQGFAGNTRFVSPFALQPQLHSGKTRGDNDGQLFFCLFFAKGM CCLGPKCEYLHHIPDEEDIGKLALRTEVLDCFGREKFADYREDMGGIGSFRKKNKTLYVGGIDGALNSKHLKPAQIESRI RFVFSRLGDIDRIRYVESKNCGFVKFKYQANAEFAKEAMSNQTLLLPSDKEWDDRREGTGLLVKWANEDPDPAAQKRLQE ELKLESLNMMVHLINNNTNSAGTEVNNKNNERLDRTFPEASVDNVKKRLLPLDNGMESDDFIEKLKKVKKNISRENISSK PSVGKLGGPLLDYLSSDED Q12046 Pre-mRNA-splicing factor SLT11 Saccharomyces cerevisiae 0.04098858999999999
Saccharomyces cerevisiae Ecm2 protein
1 LEVO MNDEINEPPPNICEQCLGDEANIRMTKIPQGSECKICTLPFTLYHFKTSKRSNNIIKTLICVRCATQRNICQCCMLDSRW HIPIQLRDHLISLVNEENVMTEEAKNDMMKRFLSLKNVKLGGAQITSDPSEADNIVDKLKNILLRATSDGPSTPLIKNTT ALYKNEKGANEVKNLEKYASVDISHILKKLPLNESFLKNPSTKSFFLYNIDASIPEWKITDTVSQLLGIKKWKDGNSLSL IVNHKAKCGGLRFQSSELGERFVSKISETLVTPKGLKRGVLLIDRFRIFIIPWSSGFSAASFGTNTAENIKLSLSLNKLI QLELGLSFPTKSTDNAKNDKKKTSKKVHKDRSKKSKPRANKLTI P38241 Pre-mRNA-splicing factor CEF1 Saccharomyces cerevisiae 0.067837773
Saccharomyces cerevisiae Cef1 protein
1 LEVO MPPVPIYVKGGVWTNVEDQILKAAVQKYGTHQWSKVASLLQKKTARQSELRWNEYLNPKLNFTEFSKEEDAQLLDLAREL PNQWRTIADMMARPAQVCVERYNRLLESEDSGGAALSTGVTDLKAGDINPNAETQMARPDNGDLEDEEKEMLAEARARLL NTQGKKATRKIRERMLEESKRIAELQKRRELKQAGINVAIKKPKKKYGTDIDYNEDIVYEQAPMPGIYDTSTEDRQIKKK FEQFERKVNRKGLDGNKDKPSKKNKDKKRKHDENEHVEKAALGESTTLTDEYKKPKLILSAPGTKQGKVTYKKKLESKRQ KLIEAQATGTVLTPKELLPHDSGQEDNERSNIKSGKQLKSRIRKFLVQMFASLPSPKNDFEIVLSEDEKEEDAEIAEYEK EFENERAMNEEDNFIEPPSQNDAPRVSLVAVPLAYSTLPIPEFKNNPQSAIDNKYNLLVANAINKEPHMVPEDTVDFLKE VESRMQHITQGRTSMKIQFKTAMPPTEVLLESIQSKVESIEQLQRKLQHVQPLEQQNNEMCSTLCHHSLPALIEGQRKYY ADYYAYRQEIRSLEGRRKRLQAMLNSSSSI Q03654 Pre-mRNA-splicing factor CWC15 Saccharomyces cerevisiae 0.019975194999999998
Saccharomyces cerevisiae Cwc15 protein
1 LEVO MTTSHRPQLEARSGAKAAAYTPTGIEHARLLPGHTTLKYRKFKEEENLRANCAQEDRSNDKSLEEAVMNEEKQDVVGSGN LQETRSEKDQKDSLQELLVTQKNKVEDKAELEGNEQLKGGNSSRRSWRKGTAFGRHKVTKETNIKEHATKKSASGYINDM TKSEYHQEFLHKHVR Q03772 Pre-mRNA-splicing factor CWC21 Saccharomyces cerevisiae 0.015793596
Saccharomyces cerevisiae Cwc21 protein
1 LEVO MSYNGIGLKSAKGSSTSGHVQRSLASNNRRRPQGSQQQRQQRQNAIKKASHDKASRPLAVQKQIETHMEKREIEVQVSEL RDRLEEEETLSEEQIDKKCEALRAKLTNEWQEQQRMSSLYTPRKARLTEEQHRHE Q03375 Pre-mRNA-splicing factor CLF1 Saccharomyces cerevisiae 0.082555859
Saccharomyces cerevisiae Clf1 protein
1 LEVO MDTLEPTAVDTHVSAEQILRDVYKKGQKARGSTNIDILDLEELREYQRRKRTEYEGYLKRNRLDMGQWIRYAQFEIEQHD MRRARSIFERALLVDSSFIPLWIRYIDAELKVKCINHARNLMNRAISTLPRVDKLWYKYLIVEESLNNVEIVRSLYTKWC SLEPGVNAWNSFVDFEIRQKNWNGVREIYSKYVMAHPQMQTWLKWVRFENRHGNTEFTRSVYSLAIDTVANLQNLQIWSD MEVAKLVNSFAHWEAAQQEYERSSALYQIAIEKWPSNQLLKAGLLDFEKQFGDINSIEETISYKRKMEYETILSNNAYDY DTWWLYLDLISESFPKQIMQTFEKAIVDSRPKELSKNVQWKRYIYLWMRYICYVELELENSLLEEELFQRLIDDIIPHKH FTFSKIWLMYAKFLIRHDDVPKARKILGKAIGLCPKAKTFKGYIELEVKLKEFDRVRKIYEKFIEFQPSDLQIWSQYGEL EENLGDWDRVRGIYTIALDENSDFLTKEAKIVLLQKYITFETESQEFEKARKLYRRYLELNQYSPQSWIEFAMYQTSTPT EQQLLDLAKLQSENVDEDIEFEITDENKLEARKVFEEAIVFFKEKDDKQGRLSILEALKDYEETYGTELDQETVKKRFPK VIKKVRLQNGVEEEFVDYIFPDDIDDDKPKPSKFLELAKKWKQEQAL Q12309 Pre-mRNA-splicing factor SYF1 Saccharomyces cerevisiae 0.10187585199999999
Saccharomyces cerevisiae Syf1 protein
1 LEVO MSAYIAMKGVITNVDENIRNDEDVAFEYEIQKTPQNILTWKRYIEYWKEEGRTDKQIRWLYERFCSQFVTDTSIWEDYIR WESTKEVVETSRIFWLFQRCLKSCVRDCDRICLSYLELAIEQYDLAMIRHALASSLMKMEREMHRKVWDPVIKFVEEKVL PLTQLDSTQEDEEESTDEAELINVLLVKGFTKGGFISEEISENGSRGDIWSSHILERYLKVAPQQKRNESLATLALTRDN ITIKSVYEKYLPQDENSGKYLPSSELPFELNFNYLASLEKLGLDNQYEEFMRQMNGIYPDKWLFLILSLAKYYISRGRLD SCGDLLKKSLQQTLRYSDFDRIYNFYLLFEQECSQFILGKLKENDSKFFNQKDWTEKLQAHMATFESLINLYDIYLNDVA LRQDSNLVETWMKRVSLQKSAAEKCNVYSEAILKIDPRKVGTPGSFGRLWCSYGDLYWRSNAISTARELWTQSLKVPYPY IEDLEEIYLNWADRELDKEGVERAFSILEDALHVPTNPEILLEKYKNGHRKIPAQTVLFNSLRIWSKYIDYLEAYCPKDA NSSDKIFNKTKMAYNTVIDLRLITPAMAENFALFLQNHYEVMESFQVYEKTIPLFPPEIQYELWIEYLEVATSHQLSSLS PEHIRFLFEKALKNLCSNGIDCKTIFIAYSVFEERISGLISKSIEILRRGAVIGTVSVSTHLESRLQLWRMCISKAESTL GPSVTRELYQECIQILPNSKAVEFVIKFSDFESSIGETIRAREILAYGAKLLPPSRNTELWDSFEIFELKHGDKETYKDM LKMKKVLESNMLIDSASVSHEEGNINFVAAATSHAPNSHTLTQSTSSYSINPDEIELDI(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) Q04048 Pre-mRNA-splicing factor 18 Saccharomyces cerevisiae 0.028414390999999997
Saccharomyces cerevisiae Prp18 protein
1 LEVO MDLDLASILKGEISKKKKELANSKGVQPPCTEKFQPHESANIDETPRQVEQESTDEENLSDNQSDDIRTTISKLENRPER IQEAIAQDKTISVIIDPSQIGSTEGKPLLSMKCNLYIHEILSRWKASLEAYHPELFLDTKKALFPLLLQLRRNQLAPDLL ISLATVLYHLQQPKEINLAVQSYMKLSIGNVAWPIGVTSVGIHARSAHSKIQGGRNAANIMIDERTRLWITSIKRLITFE EWYTSNHDSLA P33411 Pre-mRNA-splicing factor SLU7 Saccharomyces cerevisiae 0.044722874999999995
Saccharomyces cerevisiae Slu7 protein
1 LEVO MNNNSRNNENRSTINRNKRQLQQAKEKNENIHIPRYIRNQPWYYKDTPKEQEGKKPGNDDTSTAEGGEKSDYLVHHRQKA KGGALDIDNNSEPKIGMGIKDEFKLIRPQKMSVRDSHSLSFCRNCGEAGHKEKDCMEKPRKMQKLVPDLNSQKNNGTVLV RATDDDWDSRKDRWYGYSGKEYNELISKWERDKRNKIKGKDKSQTDETLWDTDEEIELMKLELYKDSVGSLKKDDADNSQ LYRTSTRLREDKAAYLNDINSTESNYDPKSRLYKTETLGAVDEKSKMFRRHLTGEGLKLNELNQFARSHAKEMGIRDEIE DKEKVQHVLVANPTKYEYLKKKREQEETKQPKIVSIGDLEARKVDGTKQSEEQRNHLKDLYG Q02775 Pre-mRNA-processing factor 17 Saccharomyces cerevisiae 0.052128762
Saccharomyces cerevisiae Prp17 protein
1 LEVO MGLVDGYDTSSDSDLNFDEGKSVHEKKNGNLHEDTSYEPSSNNIHKRKSHFTKSELKRRRKTRKGDGPWGSWSSSDDETS QASETQKEDQDIFVHALAEDNLDSEQIEVEEVSHFYGKSEKDYQGRGYLYPPNDVDVDLREERISFRCYLPKKVIRNYPG HPEGTTALKFLPKTGHLILSGGNDHTIKIWDFYHDYECLRDFQGHNKPIKALRFTEDCQSFLSSSFDRSVKIWDTETGKV KTRLHLNSTPADVESRPTNPHEFIVGLSNSKILHYDDRVSENQGLVQTYDHHLSSILALKYFPDGSKFISSSEDKTVRIW ENQINVPIKQISDTAQHSMPFLNVHPSQNYFCAQSMDNRIYSFSLKPKYKRHPKKIFKGHSSAGYGISLAFSGDGRYICS GDSKSRLFTWDWNTSRLLNNIKIPGNKPITQVDWHPQETSKVICSGAAGKIYVCD P40968 Unknown Saccharomyces cerevisiae 0.005805147
Unknown protein helices within C-star complex
1 LEVO (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) Pre-mRNA-splicing factor SYF2 Saccharomyces cerevisiae 0.024850719
Saccharomyces cerevisiae Syf2 protein
1 LEVO MDFYKLDEKLKELKRKRVDVSIKSRKLADREIQEVSANRKPRVYSMEDVNDADESVGDTESPEKEKAFHYTVQEYDAWER RHPQGKTGQSQRGGISYDQLAKLSYEKTLRNLATQTQNSSKQDSSADEEDNKNVPKKGRIGKVQKDTKTGKITIADDDKL VNKLAVSLQSESKKRYEARKRQMQNAKTLYGVESFINDKNKQFNEKLSRESKGSE P53277 Small nuclear ribonucleoprotein-associated protein B Saccharomyces cerevisiae 0.02242699
Saccharomyces cerevisiae SmB protein
1 LEVO MSKIQVAHSSRLANLIDYKLRVLTQDGRVYIGQLMAFDKHMNLVLNECIEERVPKTQLDKLRPRKDSKDGTTLNIKVEKR VLGLTILRGEQILSTVVEDKPLLSKKERLVRDKKEKKQAQKQTKLRKEKEKKPGKIAKPNTANAKHTSSNSREIAQPSSS RYNGGNDNIGANRSRFNNEAPPQTRKFQPPPGFKRK P40018 Small nuclear ribonucleoprotein Sm D3 Saccharomyces cerevisiae 0.011240138999999998
Saccharomyces cerevisiae SmD3 protein
1 LEVO MTMNGIPVKLLNEAQGHIVSLELTTGATYRGKLVESEDSMNVQLRDVIATEPQGAVTHMDQIFVRGSQIKFIVVPDLLKN APLFKKNSSRPMPPIRGPKRR P43321 Small nuclear ribonucleoprotein E Saccharomyces cerevisiae 0.010385097999999999
Saccharomyces cerevisiae SmE protein
1 LEVO MSNKVKTKAMVPPINCIFNFLQQQTPVTIWLFEQIGIRIKGKIVGFDEFMNVVIDEAVEIPVNSADGKEDVEKGTPLGKI LLKGDNITLITSAD Q12330 Small nuclear ribonucleoprotein F Saccharomyces cerevisiae 0.009669945
Saccharomyces cerevisiae SmF protein
1 LEVO MSESSDISAMQPVNPKPFLKGLVNHRVGVKLKFNSTEYRGTLVSTDNYFNLQLNEAEEFVAGVSHGTLGEIFIRCNNVLY IRELPN P54999 Small nuclear ribonucleoprotein G Saccharomyces cerevisiae 0.008490808999999998
Saccharomyces cerevisiae SmG protein
1 LEVO MVSTPELKKYMDKKILLNINGSRKVAGILRGYDIFLNVVLDDAMEINGEDPANNHQLGLQTVIRGNSIISLEALDAI P40204 Small nuclear ribonucleoprotein Sm D1 Saccharomyces cerevisiae 0.016296798
Saccharomyces cerevisiae SmD1 protein
1 LEVO MKLVNFLKKLRNEQVTIELKNGTTVWGTLQSVSPQMNAILTDVKLTLPQPRLNKLNSNGIAMASLYLTGGQQPTASDNIA SLQYINIRGNTIRQIILPDSLNLDSLLVDQKQLNSLRRSGQIANDPSKKRRRDFGAPANKRPRRGL Q02260 Small nuclear ribonucleoprotein Sm D2 Saccharomyces cerevisiae 0.012876066
Saccharomyces cerevisiae SmD2 protein
1 LEVO MSSQIIDRPKHELSRAELEELEEFEFKHGPMSLINDAMVTRTPVIISLRNNHKIIARVKAFDRHCNMVLENVKELWTEKK GKNVINRERFISKLFLRGDSVIVVLKTPVE Q06217 MAGNESIUM ION 2.4305e-05 3 MG POTASSIUM ION 3.9098e-05 2 K INOSITOL HEXAKISPHOSPHATE 0.0006600349999999999 1 IHP GUANOSINE-5'-TRIPHOSPHATE 0.0005231799999999999 1 GTP ZINC ION 6.5409e-05 6 ZN singleParticle particle 0.3 7.9 20.0 Hepes.KOH pH 7.9 100.0 KCl potassium chloride 250.0 EDTA 1.0 glycerol 0.0025 Nonidet P-40 (NP-40)
NP-40 is also called IGEPAL CA-630
 Quantifoil R1.2/1.3 COPPER 400 CARBON HOLEY ARRAY 6.0 GLOW DISCHARGE AIR 20.0 ETHANE 100 277 FEI VITROBOT MARK III
3.5 microlitres sample were applied to the grid, left for 25 seconds and then blotted for 3.0-3.5 seconds before plunging..
FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 0.5 4.5 81000.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN GIF Quantum
GIF Quantum energy filter, 20 eV slit width
GATAN K2 SUMMIT (4k x 4k) SUPER-RESOLUTION 3596 0.8 2.0
Total dose: 40 electrons/Angstrom^2 over 16 seconds. 20 movie frames collected at 1.25 frames per second.
 1 350000
Selected initial particles automatically using C complex 2D class averages, low-pass filtered to 20 Angstrom for automatic particle picking.
 CTFFIND 4 PHASE FLIPPING AND AMPLITUDE CORRECTION An initial set of 30000 particles selected using 2D class averages from the C complex (EMDB-4055) and used for 3D classification with the C complex map (EMDB-4055) as a model. A class significantly different from C complex was obtained following this procedure and used as an initial C-star model 4 3.85 FSC 0.143 CUT-OFF RELION 1.4 65824 PROJECTION MATCHING RELION 1.4 PROJECTION MATCHING RELION 1.4 RELION 1.4 emd_3539.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 412 412 412 0 0 0 412 412 412 589.16 589.16 589.16 90.0 90.0 90.0 X Y Z -0.07415286 0.17009385 0.00009972668 0.0051415786 1.43 1.43 1.43 0.036 AUTHOR Saccharomyces cerevisiae C-star spliceosome, predisposed to carry out exon ligation, the second step of pre-mRNA splicing. FLEXIBLE FIT
Used secondary structure restraints generated in ProSMART and LibG.
Fourier Shell Correlation RECIPROCAL 330.0